A tower form such as this one -- with the square body, balustrade, corner towers and conical upper turret -- was typical of Nuremberg, and appeared in many different sizes. A fair number of such towers, larger and smaller, are known in various collections.
This example has parts marked on the inside with
"iii," indicating that this was made in a series of at least
three pieces. Almost identical pieces were sold at Sotheby's in 1984 and
1988. Another example exists in the EIS collection in Berkeley. A different
form, apparently by the same master, was sold at Sotheby's in 1997. Although
the maker's mark, "jr," is not positively identified, there
is reason to believe that it is Johann Jacob Rosch.